Need advice on registering in NAV (Oslo)

A. Register in NAV to search for job opportunities B. Get into a course to learn and practice norwegian

So far google has not been of a great help. I tried registering in NAV but it requires ID number that I do not have. Also I heard that there is a course by the government but I can't find further details.

I have a bachelor in Marketing from UK and masters in globalisation and branding from Sweden. I hope I can quickly settle by getting a job and friends. I live with my Norwegian boyfriend at the moment.